Nut-lock.



N0 MODEL.

PATENTED MAR. 24, 1903.

NUT LOOK.

APPLICATION FILED AUG. 4. 1902.

UNITED STATES PATENT OFFICE.

ALBERT KISSINGER AND HUGH JOHN COLL, OF PITTSEURG,

PENNSYLVANIA.

NUT-

SPECIFICATION formingpart of Letters Patent No.72 3 ,395, dated March24, 1903. Application filed August 4, 1902. Serial No. 118,255. (Nomodel.)

To all whom it weary-concern. Be it known that we, ALBERT KISSINGER andHUGH JOHN COLL, citizens of the United States, residing at Pittsburg, inthe countyof Allegheny and State of Pennsylvania, have invented a newand useful Improvement in .Nut-Locks, of whichimprovement the followingis a specification. 1

Our invention relates to certain new and useful improvements innut-locks, and has for its object a device of this character which shallembrace novel means for securing the,

nut in locked engagement with the bolt.

Further objects of the invention "reside in the simplicity andeconomical features of construction, the comparative inexpense tomanufacture, the eificiency in operation, and one which shall embracefew parts in its en tirety.

With the above and other objects in view the invention further residesin the novel details of construction and combination of parts to befully described in the following specification and then set forth in theclaim.

Referring to the accompanying drawings, forminga part of thisapplication, and wherein like characters of reference indicate simi larparts throughout the several views, Figure 1 is a longitudinal sectionalview of the device. Fig. 2 is an end elevation thereof. Fig. 3 is aperspective view of the invention, showing the clip for locking the key.Fig. 4 is a transverse sectional view through. the nut. The bolt 1 isprovided through its upper portion with a keyway 2, which extendsthrough the outer end thereof. Received within this keyway is a key 4,preferably circular in cross-section, which seats in the keyway, extendsthrough the nut,passing sn ugly through the latter. Said key is bent atright angles about an edge of the nut and is seated in a groove thereinand engages the outer face of the nut. Theend is .then looped or bent toengage around the protruding end of the bolt, as will be seen frominspection of the drawings. Where the nut is subjected to any great jaror vibration, it has been found that it is best to secure the key, sothat the same be secured against any movement whatever. In Figs. 3 and4-Ihave shown a means for securing the key against this movement, thebolt being designated by the numeral 11, having the keyway 12 therein,in which is rethe nut and is then bent down to engage the outer face ofthe same. From this point it is bent to engage one of theperipheralfaces of the nut. A This end 14 of the key is received withina recess of a semicircular form in the peripheral face of the nut, asshown at 15. The nutat its upper and lower ends, or rather at itsdiametrically opposite faces, is provided with apertures 16 for thereception of the engaging ends of the clip 17, this clip being bowedoutwardly, as at 18, to receive the end 14 of the key. Theinner face ofthe key is in engagement with the face of the nut, as will be noted, andthe ends of the clip are bent inwardly and downwardly, as shown at19,which ends engage in the apertures formed on the sides of the nut. Itwill be noted that with this construction it will be impossible for thekey to have any movement whatever, and the clip will serve as aprotection therefor and prevent accidental disengagement of the same. v

The clip is made of spring metal, so that its engaging ends may besprung into engagementwith the nut 'by merely pulling the engaging endsaway from one another, as will be obvious.

While in the accompanying drawings the invention is illustrated in itsmost practical form,still it will be noted that various changes in thedetails of construction and combination of parts may be made withoutdeparting from the general spirit and scope of the invention.

Having thus fully described the invention, what we claim as new, anddesire to secure by Letters Patent, isl

A nut-lock comprising, in combination with a bolt having a longitudinalchannel therein, a nut havingagroove inone of its peripheral faces, thefaces of 'the nut adjacent to its grooved face being recessed atlocations opposite each other, a key adapted to be insertceived the key13, this key passing through ed in said channel end engaging over thesigned our names in the presence of two subedge of the nut, and seatedin said groove, scribing witnesses.

and a, flexible locking-clip 17 having a central ALBERT KISSINGER.recessed portion fitting over the key, and hav- I HUGH JOHN COLL.

5 ing angled ends engaging in said recesses, as In presence ofset forth.JOHN GROETZINGER,

In testimony whereof we have hereunto M. HUNTER.

